How to use

MessageEncoder

in

org.kaazing.gateway.transport.bridge

protected final <T extends Message> IoBufferEx encode(String cacheKey, MessageEncoder<T> encoder, T message, IoBufferAllocatorEx<?> allocator, int flags) {
  ConcurrentMap<String, IoBufferEx> cache = message.getCache();
  
  // if cache is not initialized, throw exception (caller should guard)
  if (cache == null) {
    throw new IllegalStateException("Cache not initialized");
  }
  // lookup existing cached encoding entry
  IoBufferEx cachedBuffer = cache.get(cacheKey);
  if (cachedBuffer == null) {
    // when cachedBuffer is null, perform encode, then cache the result
    // with standard atomic race condition awareness (put-if-absent)            
    if ((flags & FLAG_ZERO_COPY) != 0) {
      if (!cache.isEmpty()) {
        flags &= ~FLAG_ZERO_COPY;
      }
    }
    IoBufferEx newCachedBuffer = encoder.encode(allocator, message, flags);
    if (newCachedBuffer instanceof MessageBuffer<?>) {
      MessageBuffer<?> cacheableBuffer = (MessageBuffer<?>) newCachedBuffer;
      cacheableBuffer.setAutoCache(true);
    }
    cachedBuffer = cache.putIfAbsent(cacheKey, newCachedBuffer);
    if (cachedBuffer == null) {
      cachedBuffer = newCachedBuffer;
    }
  }
  return cachedBuffer;
}

content = contentMessageEncoder.encode(allocator, httpContent, FLAG_NONE);

content = contentMessageEncoder.encode(allocator, httpContent, FLAG_NONE);